/Engine/Plugins/Runtime/Metasound/Source/MetasoundEngine/Public/MetasoundBuilderSubsystem.h
Returns delegates used to mutate any internal builder cached state or notify listeners of external system that has mutated a given document class. Exists primarily for backward compatibility with the DocumentController system, and is not recommended for use outside of MetaSound plugin as it may be deprecated in the future (best practice is to mutate all documents using MetasoundDocumentBuilders).
virtual const [Metasound::Frontend::FDocumentModifyDelegates](API\Plugins\MetasoundFrontend\FDocumentModifyDelegates) * FindModifyDelegates ( const [FMetasoundFrontendClassName](API\Plugins\MetasoundFrontend\FMetasoundFrontendClassName) & InClassName ) const